Journal of Food, Agriculture and Environment

Seed and forage yield in populations of sainfoin (Onobrychis sativa) grown as swards

Author(s):

F. Hosaininejadmir ¹, A. A. Jafari ^2*, S. Nakhjavan ¹

Recieved Date: 2010-09-08, Accepted Date: 2011-01-12

Abstract:

In order to study seed and dry matter (DM) yield and relationships among yield and morphological traits, 34 populations of Sainfoin (Onobrychis sativa), were studied using randomized complete block design with three replications in Khoramabad, Iran during 2008-2009. The data were collected for seed yield, DM yield, plant height, inflorescences number, inflorescences length, plant density, flowering date, 1000-grains weight, straw yield and harvest index. Analysis of variance showed significant differences among populations for all of traits except inflorescences number, inflorescences length. In comparison among populations, Oshnavia, Faridonshar, Sarab and Kermanshah with average values of 678 to 737 kg ha^-1 had higher seed production. Among them Kermanshah, with average values of 4.01 ton ha^-1/per cut had higher DM yield and it was introduced as a local variety for cultivation. Seed yield was positively correlated with both DM and straw yield and negatively with flowering date. The results of PCA analysis showed that the first four components accounted for 29, 18, 17 and 11 of the total variation, respectively. DM and straw yield in the PCA₁, 1000- grain weight couple with inflorescences number and plant density in the PCA₂, seed yield and flowering date in the PCA₃ and finally inflorescences length and plant height in the PCA₄ components were identified as important traits. Using Ward cluster method the 34 populations were grouped into 3 clusters. The populations in Cluster 1 couple late maturity with lower productivity for both DM and seed yield. Clusters 2 and 3 had higher productivity with late and early flowering date, respectively.

Keywords:

Sainfoin (Onobrychis sativa), seed yield, forage yield, correlation, PCA and cluster

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Journal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 1
Category: Agriculture
Pages: 404-408

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